442102211 has 8 divisors (see below), whose sum is σ = 444680544. Its totient is φ = 439531200.

The previous prime is 442102123. The next prime is 442102231. The reversal of 442102211 is 112201244.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 442102211 - 2²⁶ = 374993347 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 442102211.

It is not an unprimeable number, because it can be changed into a prime (442102231) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 156665 + ... + 159461.

It is an arithmetic number, because the mean of its divisors is an integer number (55585068).

Almost surely, 2^442102211 is an apocalyptic number.

442102211 is a deficient number, since it is larger than the sum of its proper divisors (2578333).

442102211 is a wasteful number, since it uses less digits than its factorization.

442102211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3661.

The product of its (nonzero) digits is 128, while the sum is 17.

The square root of 442102211 is about 21026.2267418574. The cubic root of 442102211 is about 761.7998724700.

Adding to 442102211 its reverse (112201244), we get a palindrome (554303455).

The spelling of 442102211 in words is "four hundred forty-two million, one hundred two thousand, two hundred eleven".